FOR SALE IS TWO (2) 3/16" (5mm) ZINC PLATED CARBON STEEL MEDIUM DUTY QUICK LINKS BY PEERLESS CHAIN COMPANY MPN 4721138 ALTERNATE MPN 8056135 UPC# 042228092184. VERSATILE MULTI PURPOSE STEEL CONNECTOR WITH 615 pound (278 kg) LOAD LIMIT. 3/16" (5mm) STEEL DIAMETER. TWO (2) MEDIUM DUTY QUICK LINKS PER ORDER, DELIVERED WITHOUT MANUFACTURERS PACKAGING, SINCE I PURCHASE THESE IN BULK. EACH QUICK LINK ALLOWS USER TO QUICKLY AND SAFELY SECURE TWO (2) CHAINS, IMPLEMENTS, MARINE APPLICATIONS, ACCESSORIES, ETC, WITHOUT CUTTING OR WELDING, OR THE NEED FOR TOOLS. A THREADED NUT CONNECTOR "LINK" ALLOWS FOR MAXIMUM SECURITY OF YOUR CHAIN, WIRE, ROPE, ETC. USE THIS QUICK LINK TO REPAIR OR CONNECT CHAIN, AGRICULTURAL USE, PULLING, CONNECTING ACCESSORIES, HANG YOUR HAMMOCK OR SWING ON THE PORCH, TIE DOWN TARP, ETC. USE ONLY WITH CHAIN OF EQUAL OR LOWER WORKING LOAD LIMIT OF 615 pounds. EACH QUICK LINK IS REUSABLE AND IS "QUICK" TO LINK AND QUICK TO UNLINK. THIS QUICK LINK IS CONSTRUCTED OF LOW CARBON STEEL WITH ZINC PLATING TO HELP PREVENT RUST. COMPLETE MANUFACTURERS SPECIFICATIONS ARE PROVIDE IN THE ITEM SPECIFICS, OR, YOU MAY VIEW THE PEERLESS MANUFACTURERS SPECIFICATION DATA FEATURED IN THE PICTURES. YOU WILL RECEIVE ONE (2) MEDIUM DUTY 3/16" QUICK LINKS SHIPPED FAST BY USPS FIRST CLASS MAIL IN FLAT ENVELOPE WITH NO TRACKING..... note... i also carry a larger 3/8" quick link with a 1,900 pound load limit, same design, just thicker steel and added capacity, just go to my other items and search keywords "Peerless Link"..... BID AND BUY HERE IN IN ABSOLUTE CONFIDENCE SINCE I HAVE THOUSANDS OF POSITIVE FEEDBACK AND TEN+ YEARS EXPERIENCE. I SHIP WITHIN TWO DAYS OF RECEIPT OF PAYMENT-OFTEN THE NEXT DAY. PAYMENT IS BY PAYPAL ONLY! $2.81 USPS FIRST CLASS "GREEN" SHIPPING USING RECYCLED PACKAGING MATERIALS AND ENVIRONMENTALLY FRIENDLY MATERIALS TO ANYWHERE USA. I DO NOT SHIP ANYWHERE ELSE. NO RETURN OR EXCHANGE ON THIS ITEM-SOLD AS IS. HAVE A GREAT DAY AND THANK YOU FOR STOPPING BY.......